US3786541A - Cutting inserts having two-stage chipbreaker - Google Patents

Cutting inserts having two-stage chipbreaker Download PDF

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Publication number
US3786541A
US3786541A US00299336A US3786541DA US3786541A US 3786541 A US3786541 A US 3786541A US 00299336 A US00299336 A US 00299336A US 3786541D A US3786541D A US 3786541DA US 3786541 A US3786541 A US 3786541A
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United States
Prior art keywords
cutting
insert
chip
cutting edge
breaker
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Expired - Lifetime
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US00299336A
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E Lundgren
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Santrade Ltd
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Sandvik AB
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Assigned to SANTRADE LTD., A CORP. OF SWITZERLAND reassignment SANTRADE LTD., A CORP. OF SWITZERLAND ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SANDVIK AKTIEBOLAG, A CORP. OF SWEDEN
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/141—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
    • B23B27/143—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness characterised by having chip-breakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/20—Top or side views of the cutting edge
    • B23B2200/202—Top or side views of the cutting edge with curved cutting edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/32—Chip breaking or chip evacuation
    • B23B2200/323—Chip breaking or chip evacuation by chip breaking depressions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/36—Other features of cutting inserts not covered by B23B2200/04 - B23B2200/32
    • B23B2200/3645—Lands, i.e. the outer peripheral section of the rake face
    • B23B2200/3654—Lands, i.e. the outer peripheral section of the rake face being variable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/36—Other features of cutting inserts not covered by B23B2200/04 - B23B2200/32
    • B23B2200/3645—Lands, i.e. the outer peripheral section of the rake face
    • B23B2200/3663—Lands, i.e. the outer peripheral section of the rake face having negative cutting angles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/24—Cutters, for shaping with chip breaker, guide or deflector
    • Y10T407/245—Cutters, for shaping with chip breaker, guide or deflector comprising concave surface in cutting face of tool

Definitions

  • the invention relates to a cutting insert having chip- Oct. 27, 1971 Sweden 13605/71 breakers in two Stages, and is characterized in that the cutting edge and the associated chip-breaker describe Fn-tS.(g
  • the cutting insert of the invention is characterized in that the cutting edge and the associated chip-breaker describe a curve composed of straight and/or arched parts in the plane of the clearanceor side face.
  • the chip-breaker has two steps or portions. Its back (i.e., inner) boundary connects with a central part of the cutting insert.
  • the invention is characterized in that the first chip-breaker step has constant width and depth in relation to the cutting edge, while the width and depth of the second chip-breaker step vary with the position or depth of the cutting edge in relation to the central part of the cutting insert. In the corner or noseradius region there may be some divergence from the characteristics of the invention.
  • FIG. 1 is a side elevational view of the cutting insert shown in FIG. 2;
  • FIG. 2 is a horizontal projection view of a cutting insert according to the invention, showing the top side thereof;
  • FIG. 3 shows, in enlarged scale, the profile of a chipbreaker on section 3-3 in FIG. 2;
  • FIGS. 411 show side elevational views, respectively horizontal projection views, of different embodiments of cutting inserts according to the invention.
  • FIGS. l2l3 illustrate a symmetrical, respectively unsymmetrical, square cutting insert according to the invention as seen in perspective;
  • FIGS. l4-19 show side elevational views, respectively horizontal projection views, of different embodiments of unsymmetrical cutting inserts according to the invention.
  • FIGS. 20-24 illustrate different forms of connection between chip-breaker and cutting edge
  • FIGS. 25-26 show bottom views of different embodiments of cutting insert corners according to the invention.
  • the cutting insert shown in FIGS. 1-26 has on one broad side (and alternatively also on the opposite side) at least one corner with one or two connecting cutting edges.
  • chip-breakers in the form of grooves 11 surrounding a central part 12 of the cutting insert.
  • the cutting edge is formed so that it describes a curve composed of straight and/or arched parts in the plane of the clearanceor side faces.
  • the chip-breaker has two steps, the first step 13 having constant width B and constant depth A (see FIG. 3) in relation to the cutting edge, while the width C and the depth D of the second chip-breaker step vary with the depth of the cutting edge below the central part 12.
  • the cutting edge consists of two concave parts 15 next to the corner-radii of the insert, and an interjacent convex part 16.
  • the boundary between the second chipbreaker step and the central face 12 shows corresponding concave parts 17 and a convex part 18.
  • interjacent part 19 (and corresponding chipbreaker part 20) are straight.
  • FIGS. 6 and 7 show an embodiment in which the interjacent straight part 19 (respectively 20) connects with, and touches, the adjacent concave parts at their lowest point.
  • FIGS. 8 and 9 show an embodiment in which the outer portions 21 (respectively 22) of the concave parts are straight towards the insert corners.
  • FIGS. 10 and 11 show an embodiment in which the downward part 15 of the cutting edge does not start at the insert corners but rather it starts at some distance 23 into the cutting edge. This form may be present in all embodiments mentioned.
  • the insert is symmetrical, the cutting edges and chip-breakers extending along all the sides and corners of the insert.
  • the cutting edges and the connecting chipbreakers are symmetrically formed in relation to the central lines of the inserts.
  • FIG. 13 shows an embodiment in which the cutting edges do not extend around the sides of the whole insert and do not follow the shape of the insert corner but rather go straight out through the adjacent insert face.
  • the cutting edge and the chip-breaker, from the insert corner and along the primary cutting edge to about the middle or somewhat above the middle of the insert have the same form as in the corresponding region of symmetrical inserts.
  • the chip-breaker and the cutting edge are finished off by a part 24 connecting to the top face of the cutting insert.
  • FIGS. 20-24 illustrate examples showing the connection between chip-breaker and cutting edge.
  • the front edge 25 of the chip-breaker can directly connect with the cutting edge 26, 27 which may be sharp (see FIG. 20), or slightly rounded (see FIG. 21).
  • the front edge may also be connected with the cutting edge via a plain face or land area 28. This plain face can be parallel with the top face 29, respectively, bottom face of the insert, or may incline in negative angle 30 or positive angle 31.
  • such plain face can be thinner in the region 32 around the nose-radius, or be completely missing in this area 33.
  • FIG. 3 shows a border-line case in which the chipbreaker has only one step on its thinnest part but on the broader parts has two steps. It is realized that the composite cross-section of the chip-breaker groove will vary and be different in different cross-sections of the cutting edge.
  • Cutting insert having at least one insert corner with associated cutting edges provided with chip-breakers in the shape of grooves in the broador chip faces of the insert, said grooves extending along the cutting edges, the inner or back boundary of the chip-breaker connecting with a central region of the cutting insert, said chip-breaker being shaped with two steps, in which cutting insert the cutting edge with associated chipbreaker describes a compound line composed of concave portions adjacent the outer extremities of the cutting edge and an intermediate portion which is arched, said compound line being in the plane of the clearance or side face, the first chip-breaker step having constant width and depth in relation to the cutting edge, while the width and depth of the second chip-breaker step vary with the position of the cutting edge in relation to the central region.
  • Cutting insert according to claim 1 charcterized in that the cutting edge with connecting chip-breaker consists of concave parts next to the corner radii of the insert and an interjacent convex part.
  • Cutting insert according to claim 1 wherein the cutting edges with associated chip-breaker consists of concave parts next to the corner radii of the insert and an interjacent straight part.

Abstract

The invention relates to a cutting insert having chip-breakers in two stages, and is characterized in that the cutting edge and the associated chip-breaker describe a curve composed of straight and/or arched parts in the plane of the clearance- or side face.

Description

Q United States Patent 1 [111 3,786,541 Lundgren Jan. 22, 1974 CUTTING INSERTS HAVING TWO-STAGE [56] References Cited CHIPBREAKER UNITED STATES PATENTS [75] Inventor: Evert Gustav Lundgren, Sandviken, 3,557,416 1/1971 Jones 29/95 Sweden 3,395,434 8/1968 Wirfelt 29/95 3 383, 4 5 1968 G 1.... m1 Assignee: Sandvikens Akfiebolag, 3:381 343 41968 Niiilffifi i313? Sandviken, Sweden Y [22] Filed; Oct, 18, 1972 Primary Examiner-Leonidas Vlachos pp NO: 9, At torney Agent, or Firm- Pierce. Scheffler & Parker [57] ABSTRACT [30] Forelgn Apphcauon Pmmty Data The invention relates to a cutting insert having chip- Oct. 27, 1971 Sweden 13605/71 breakers in two Stages, and is characterized in that the cutting edge and the associated chip-breaker describe Fn-tS.(g| a curve composed of Straight and/0r arched parts i l f t l f [58] Field of Search 29/95, 96 the p am 0 he 6 earance or slde ace 6 Claims, 26 Drawing Figures CUTTING INSERTS HAVING TWO-STAGE CI-IIPBREAKER The present invention relates to cutting inserts and, in particular, to indexable inserts having at least one cutting edge.
It heretofore had been proposed to provide such inserts with grooves or chip-breakers in the broad sides of chip faces, the grooves extending along the cutting edges. These chip-breakers are shaped in one or more steps.
According to the invention there is now made available a cutting insert giving improved chip-forming and chip-breaking compared to earlier known inserts. The novel cutting insert has shown superior properties under most varying cutting conditions.
The cutting insert of the invention is characterized in that the cutting edge and the associated chip-breaker describe a curve composed of straight and/or arched parts in the plane of the clearanceor side face.
The chip-breaker has two steps or portions. Its back (i.e., inner) boundary connects with a central part of the cutting insert. The invention is characterized in that the first chip-breaker step has constant width and depth in relation to the cutting edge, while the width and depth of the second chip-breaker step vary with the position or depth of the cutting edge in relation to the central part of the cutting insert. In the corner or noseradius region there may be some divergence from the characteristics of the invention.
In negative inserts which have cutting edges on both sides of the insert, the central parts of the sides are mainly plain or parallel. In single-faced inserts, whether positive or negative in rake, -which have cutting edges only on the top face the central part may have another form.
The present invention will now be described in greater particularity in the following specification taken in connection with the appended drawing, in which:
FIG. 1 is a side elevational view of the cutting insert shown in FIG. 2;
FIG. 2 is a horizontal projection view of a cutting insert according to the invention, showing the top side thereof;
FIG. 3 shows, in enlarged scale, the profile of a chipbreaker on section 3-3 in FIG. 2;
FIGS. 411 show side elevational views, respectively horizontal projection views, of different embodiments of cutting inserts according to the invention;
FIGS. l2l3 illustrate a symmetrical, respectively unsymmetrical, square cutting insert according to the invention as seen in perspective;
FIGS. l4-19 show side elevational views, respectively horizontal projection views, of different embodiments of unsymmetrical cutting inserts according to the invention;
FIGS. 20-24 illustrate different forms of connection between chip-breaker and cutting edge; and
FIGS. 25-26 show bottom views of different embodiments of cutting insert corners according to the invention.
The cutting insert shown in FIGS. 1-26 has on one broad side (and alternatively also on the opposite side) at least one corner with one or two connecting cutting edges. Along the cutting edges there are chip-breakers in the form of grooves 11 surrounding a central part 12 of the cutting insert. As had been mentioned earlier, the cutting edge is formed so that it describes a curve composed of straight and/or arched parts in the plane of the clearanceor side faces. The chip-breaker has two steps, the first step 13 having constant width B and constant depth A (see FIG. 3) in relation to the cutting edge, while the width C and the depth D of the second chip-breaker step vary with the depth of the cutting edge below the central part 12.
In the embodiment shown in FIGS. 1 and 2, the cutting edge consists of two concave parts 15 next to the corner-radii of the insert, and an interjacent convex part 16. The boundary between the second chipbreaker step and the central face 12 shows corresponding concave parts 17 and a convex part 18.
According to the embodiment shown in FIGS. 4 and 5 the interjacent part 19 (and corresponding chipbreaker part 20) are straight.
FIGS. 6 and 7 show an embodiment in which the interjacent straight part 19 (respectively 20) connects with, and touches, the adjacent concave parts at their lowest point.
FIGS. 8 and 9 show an embodiment in which the outer portions 21 (respectively 22) of the concave parts are straight towards the insert corners.
FIGS. 10 and 11 show an embodiment in which the downward part 15 of the cutting edge does not start at the insert corners but rather it starts at some distance 23 into the cutting edge. This form may be present in all embodiments mentioned.
In triangular cutting inserts and in the square cutting insert shown in FIG. 12, the insert is symmetrical, the cutting edges and chip-breakers extending along all the sides and corners of the insert. In this embodiment, also, the cutting edges and the connecting chipbreakers are symmetrically formed in relation to the central lines of the inserts.
FIG. 13 shows an embodiment in which the cutting edges do not extend around the sides of the whole insert and do not follow the shape of the insert corner but rather go straight out through the adjacent insert face.
Relative to the unsymmetrical cutting inserts shown in FIGS. 14-19 the cutting edge and the chip-breaker, from the insert corner and along the primary cutting edge to about the middle or somewhat above the middle of the insert have the same form as in the corresponding region of symmetrical inserts. In the unsymmetrical inserts, the chip-breaker and the cutting edge are finished off by a part 24 connecting to the top face of the cutting insert.
FIGS. 20-24 illustrate examples showing the connection between chip-breaker and cutting edge. Thus, the front edge 25 of the chip-breaker can directly connect with the cutting edge 26, 27 which may be sharp (see FIG. 20), or slightly rounded (see FIG. 21). The front edge may also be connected with the cutting edge via a plain face or land area 28. This plain face can be parallel with the top face 29, respectively, bottom face of the insert, or may incline in negative angle 30 or positive angle 31.
As shown in FIGS. 25-26, such plain face can be thinner in the region 32 around the nose-radius, or be completely missing in this area 33.
Depending upon the depth of the cutting edge below the central part of the cutting insert, different amounts of the profile will be in the chip-breaker cross-section. FIG. 3 shows a border-line case in which the chipbreaker has only one step on its thinnest part but on the broader parts has two steps. It is realized that the composite cross-section of the chip-breaker groove will vary and be different in different cross-sections of the cutting edge.
I claim:
1. Cutting insert having at least one insert corner with associated cutting edges provided with chip-breakers in the shape of grooves in the broador chip faces of the insert, said grooves extending along the cutting edges, the inner or back boundary of the chip-breaker connecting with a central region of the cutting insert, said chip-breaker being shaped with two steps, in which cutting insert the cutting edge with associated chipbreaker describes a compound line composed of concave portions adjacent the outer extremities of the cutting edge and an intermediate portion which is arched, said compound line being in the plane of the clearance or side face, the first chip-breaker step having constant width and depth in relation to the cutting edge, while the width and depth of the second chip-breaker step vary with the position of the cutting edge in relation to the central region.
2. Cutting insert according to claim 1, charcterized in that the cutting edge with connecting chip-breaker consists of concave parts next to the corner radii of the insert and an interjacent convex part.
3. Cutting insert according to claim 1, wherein the cutting edges with associated chip-breaker consists of concave parts next to the corner radii of the insert and an interjacent straight part.
4. Cutting insert according to claim 1, wherein the outer portion of the concave parts is straight.
5. Cutting insert according to claim 1, wherein the downward part of the cutting edge starts at some distance into the cutting edge.
6. Cutting edge according to claim 1, wherein the curve which describes the cutting edge with associated chip-breaker extends from the insert corner at least to the middle of the cutting insert.
UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 1 85 Dated Iannare: 22
Inventor(s) Evert Gustav Lundgren It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
[73] Assignee: Sandvik Aktiebolag,
' Sandviken, Sweden Signed and sealed this 30th day of April 1971+.
(SEAL) Atteat:
EDWARD I'LFLETGHEILJR. G. MARSHALL DANN Atte sting Officer Commissioner of Patents FORM PC4050 $59) I uscoMM-Dc 6O376-P69 .5. GOVERNMENT PRINTING OFFCE: l9, 0-35-35:

Claims (6)

1. Cutting insert having at least one insert corner with associated cutting edges provided with chip-breakers in the shape of grooves in the broad- or chip faces of the insert, said grooves extending along the cutting edges, the inner or back boundary of the chip-breaker connecting with a central region of the cutting insert, said chip-breaker being shaped with two steps, in which cutting insert the cutting edge with associated chip-breaker describes A compound line composed of concave portions adjacent the outer extremities of the cutting edge and an intermediate portion which is arched, said compound line being in the plane of the clearance or side face, the first chipbreaker step having constant width and depth in relation to the cutting edge, while the width and depth of the second chipbreaker step vary with the position of the cutting edge in relation to the central region.
2. Cutting insert according to claim 1, charcterized in that the cutting edge with connecting chip-breaker consists of concave parts next to the corner radii of the insert and an interjacent convex part.
3. Cutting insert according to claim 1, wherein the cutting edges with associated chip-breaker consists of concave parts next to the corner radii of the insert and an interjacent straight part.
4. Cutting insert according to claim 1, wherein the outer portion of the concave parts is straight.
5. Cutting insert according to claim 1, wherein the downward part of the cutting edge starts at some distance into the cutting edge.
6. Cutting edge according to claim 1, wherein the curve which describes the cutting edge with associated chip-breaker extends from the insert corner at least to the middle of the cutting insert.
US00299336A 1971-10-27 1972-10-18 Cutting inserts having two-stage chipbreaker Expired - Lifetime US3786541A (en)

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SE13605/71A SE349758B (en) 1971-10-27 1971-10-27

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JP (1) JPS4852078A (en)
DE (2) DE7239216U (en)
FR (1) FR2158983A5 (en)
GB (1) GB1387709A (en)
IT (1) IT970030B (en)
SE (1) SE349758B (en)

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US4059363A (en) * 1975-04-09 1977-11-22 Ugine Carbone Cutting plates with rounded cutting edges and concave frustoconical cutting surfaces
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US20190168310A1 (en) * 2016-07-28 2019-06-06 Kyocera Corporation Cutting insert, cutting tool, and method of manufacturing machined product
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DE102006023740B4 (en) * 2006-05-18 2017-05-11 Kennametal Widia Produktions Gmbh & Co. Kg Cutting insert and tool consisting of tool holder and cutting insert
CN107138753B (en) * 2017-07-04 2023-05-09 贵州大学 Micro-groove hard alloy turning blade for cutting high-temperature alloy GH4169
CN107138752B (en) * 2017-07-04 2023-05-09 贵州大学 Coated cemented carbide rake face comb-tooth-shaped micro-groove turning tool for cutting 40CrMnMo
CN112496365B (en) * 2020-12-08 2022-06-07 赣州澳克泰工具技术有限公司 Indexable turning blade

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US3968550A (en) * 1975-01-14 1976-07-13 Stellram Sa Hard metal cutting bit
US4059363A (en) * 1975-04-09 1977-11-22 Ugine Carbone Cutting plates with rounded cutting edges and concave frustoconical cutting surfaces
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US4056872A (en) * 1975-10-03 1977-11-08 Gte Sylvania Incorporated Positive rake cutting insert for use in negative rake holders
US4214845A (en) * 1977-08-05 1980-07-29 Sumitomo Electric Industries, Ltd. Throw away inserts
US4561809A (en) * 1979-12-04 1985-12-31 Iscar Ltd. Cutting tool insert with chip breaker
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EP0205977A2 (en) * 1985-05-28 1986-12-30 Gte Valeron Corporation Cutting insert with chip control
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US4846609A (en) * 1987-08-03 1989-07-11 Gte Valenite Corporation Polygonal cutting insert
US4787784A (en) * 1987-08-03 1988-11-29 Gte Valenite Corporation Polygonal cutting insert
US4854785A (en) * 1987-08-17 1989-08-08 Gte Valenite Corporation Scalloped threader cutting insert
US4859122A (en) * 1987-08-17 1989-08-22 Gte Valenite Corporation Polygonal cutting insert
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US4993892A (en) * 1988-08-25 1991-02-19 Sumitomo Electric Industries, Ltd. Thread cutting throw-away tip
US5000626A (en) * 1988-12-22 1991-03-19 Gte Valenite Corporation Cutting insert for low ranges of feed and depth of cut
US5192171A (en) * 1991-01-07 1993-03-09 Gte Valenite Corporation Chip control insert
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US5876160A (en) * 1996-08-21 1999-03-02 Ingersoll Cutting Tool Company Milling with insert having cutting-edge land of width increasing with depth of cut
EP0927089A1 (en) * 1996-08-21 1999-07-07 Ingersoll Cutting Tool Company Insert having variable width land
EP0927089A4 (en) * 1996-08-21 2002-04-17 Ingersoll Cutting Tool Insert having variable width land
US6196771B1 (en) * 1996-10-17 2001-03-06 Seco Tools Ab Face-milling method and apparatus
US6200072B1 (en) * 1997-10-17 2001-03-13 Seco Tools Ab Face-milling method and apparatus
US6464434B2 (en) 1998-01-29 2002-10-15 Baker Hughes Incorporated Cutting matrix and method applying the same
US6167958B1 (en) * 1998-01-29 2001-01-02 Baker Hughes Incorporated Cutting matrix and method of applying the same
USD404745S (en) * 1998-04-03 1999-01-26 Valenite Inc. Polygonal indexable cutting insert
USD416917S (en) * 1998-04-03 1999-11-23 Valenite Inc. Polygonal indexable cutting insert
USD404744S (en) * 1998-04-03 1999-01-26 Valenite Inc. Polygonal indexable cutting insert
US6336776B1 (en) * 1999-12-16 2002-01-08 Valenite Inc. Milling cutter and insert therefor
US6848868B2 (en) 2001-04-23 2005-02-01 Kennametal Inc. Multiple groove chip control for cutting insert
US8449226B2 (en) * 2005-08-01 2013-05-28 Sumitomo Electric Hardmetal, Corp. Throw-away cutting insert and cutting tool with replaceable cutting edge using the same
US20070041798A1 (en) * 2005-08-01 2007-02-22 Sumitomo Electric Hardmetal, Corp. Throw-away cutting insert and cutting tool with replaceable cutting edge using the same
US20110044776A1 (en) * 2008-05-23 2011-02-24 Kyocera Corporation Drill, Cutting Insert, and Method of Manufacturing Cut Product
CN102026755A (en) * 2008-05-23 2011-04-20 京瓷株式会社 Drill, cutting insert, and method of producing cut object
US8840346B2 (en) 2008-05-23 2014-09-23 Kyocera Corporation Drill, cutting insert, and method of manufacturing cut product
US20100129167A1 (en) * 2008-11-21 2010-05-27 Lewis Ray Morrison Roughing cut edge insert with a finishing wiper
WO2016055468A1 (en) * 2014-10-08 2016-04-14 Sandvik Intellectual Property Ab Turning tool cutting insert and turning tool
EP3006140A1 (en) * 2014-10-08 2016-04-13 Sandvik Intellectual Property AB Turning tool cutting insert and turning tool
US20190168310A1 (en) * 2016-07-28 2019-06-06 Kyocera Corporation Cutting insert, cutting tool, and method of manufacturing machined product
US11517965B2 (en) * 2016-07-28 2022-12-06 Kyocera Corporation Cutting insert, cutting tool, and method of manufacturing machined product
US11420267B2 (en) 2017-08-02 2022-08-23 Kyocera Corporation Cutting insert, cutting tool, and method for manufacturing machined product
US11759869B2 (en) * 2017-08-23 2023-09-19 Taegutec, Ltd. Cutting insert for drilling
US20200001374A1 (en) * 2018-06-29 2020-01-02 Herramientas Preziss, S.L. Cutting Insert Applicable To Machining Tools And The Tool Bearing It
US20200130072A1 (en) * 2018-10-31 2020-04-30 Kyocera Corporation Cutting insert, cutting tool, and method for manufacturing machined product

Also Published As

Publication number Publication date
DE2252350A1 (en) 1973-05-03
FR2158983A5 (en) 1973-06-15
IT970030B (en) 1974-04-10
JPS4852078A (en) 1973-07-21
DE7239216U (en) 1977-02-10
SE349758B (en) 1972-10-09
GB1387709A (en) 1975-03-19

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